The ponies get frozen solid by Windigos, winter spirits that feed off fighting and hatred, because of the hatred of Rarity, Pinkie Pie and Rainbow Dash. They are saved because Twilight Sparkle, Applejack and Fluttershy started to develop a deep friendship. All this happens in a play, so the ponies were actually never in danger.


During the Hearth's Warming Eve-festival, the ponies put on a play in Canterlot about the founding of Equestria. It turns out that in the beginning, the relationship between the Ponies, the Unicorns and the Pegasi was very fragile, because there was a lot of hatred. Because of this, the winter spirits called Windigos get stronger. In the climax, the ponies of all the fractions get trapped inside a cave. Because their leaders, Princess Platinum (played by Rarity), Commander Hurricane (played by Rainbow Dash) and Chancellor Puddinghead (played by Pinkie Pie), still continue fighting, they're frozen solid by the winter spirits. Then, just before it's too late, the 3 second-in-commands (played by Twilight Sparkle, Applejack and Fluttershy) form a friendship that breaks the ice, which finally leads to harmony between the three tribes.